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An organic molecule smaller than a protein that contains nitrogen is an amino acid. Amino acids are the building blocks of proteins and consist of a central carbon atom, an amino group (–NH2), a carboxyl group (–COOH), a hydrogen atom, and a variable side chain (R group) that determines the specific properties of each amino acid. There are 20 standard amino acids that combine in various sequences to form proteins. Additionally, other nitrogen-containing organic molecules include nucleotides and certain neurotransmitters.

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AnswerBot

1d ago

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